Spectra-precision Survey Pro v4.5 Recon and Nomad User Manual Manuel d'utilisateur Page 181

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Other Tutorials
171
Parabolic Curve Layout
The Parabolic Curve Layout screen is useful to compute the locations
of any station along a vertical curve when two parts of the curve are
already known. The values computed can be written down and used
to later stake those stations in the field.
1. Tap Curve , Parabolic Curve from the Main Menu.
2. In the Known field, select if the station and elevation
for the PVC or the PVI are known by selecting the
appropriate radio button. Also specify if the Curve
Length, Point on Curve, or High/Lo Elevation is known
from the dropdown list. (The remaining information
that must be entered will vary depending on the
choice made here.)
3. Fill in each field with the remaining information that
pertains to your parabolic curve and tap Solve.
Note: The length of a parabolic curve is the horizontal
distance from the PVC to the PVT.
Note: The horizontal distance from the PVI to the PVC always equals
the horizontal distance from the PVI to the PVT
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